tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25#include "atom.h"
26#include "amdgpu.h"
27#include "amd_shared.h"
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include "amdgpu_pm.h"
31#include <drm/amdgpu_drm.h>
32#include "amdgpu_powerplay.h"
33#include "si_dpm.h"
34#include "cik_dpm.h"
35#include "vi_dpm.h"
36
37static int amdgpu_create_pp_handle(struct amdgpu_device *adev)
38{
39 struct amd_pp_init pp_init;
40 struct amd_powerplay *amd_pp;
41 int ret;
42
43 amd_pp = &(adev->powerplay);
44 pp_init.chip_family = adev->family;
45 pp_init.chip_id = adev->asic_type;
46 pp_init.pm_en = (amdgpu_dpm != 0 && !amdgpu_sriov_vf(adev)) ? true : false;
47 pp_init.feature_mask = amdgpu_pp_feature_mask;
48 pp_init.device = amdgpu_cgs_create_device(adev);
49 ret = amd_powerplay_create(&pp_init, &(amd_pp->pp_handle));
50 if (ret)
51 return -EINVAL;
52 return 0;
53}
54
55static int amdgpu_pp_early_init(void *handle)
56{
57 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
58 struct amd_powerplay *amd_pp;
59 int ret = 0;
60
61 amd_pp = &(adev->powerplay);
62 adev->pp_enabled = false;
63 amd_pp->pp_handle = (void *)adev;
64
65 switch (adev->asic_type) {
66 case CHIP_POLARIS11:
67 case CHIP_POLARIS10:
68 case CHIP_POLARIS12:
69 case CHIP_TONGA:
70 case CHIP_FIJI:
71 case CHIP_TOPAZ:
72 case CHIP_CARRIZO:
73 case CHIP_STONEY:
74 case CHIP_VEGA10:
75 case CHIP_RAVEN:
76 adev->pp_enabled = true;
77 if (amdgpu_create_pp_handle(adev))
78 return -EINVAL;
79 amd_pp->ip_funcs = &pp_ip_funcs;
80 amd_pp->pp_funcs = &pp_dpm_funcs;
81 break;
82 /* These chips don't have powerplay implemenations */
83#ifdef CONFIG_DRM_AMDGPU_SI
84 case CHIP_TAHITI:
85 case CHIP_PITCAIRN:
86 case CHIP_VERDE:
87 case CHIP_OLAND:
88 case CHIP_HAINAN:
89 amd_pp->ip_funcs = &si_dpm_ip_funcs;
90 break;
91#endif
92#ifdef CONFIG_DRM_AMDGPU_CIK
93 case CHIP_BONAIRE:
94 case CHIP_HAWAII:
95 amd_pp->ip_funcs = &ci_dpm_ip_funcs;
96 break;
97 case CHIP_KABINI:
98 case CHIP_MULLINS:
99 case CHIP_KAVERI:
100 amd_pp->ip_funcs = &kv_dpm_ip_funcs;
101 break;
102#endif
103 default:
104 ret = -EINVAL;
105 break;
106 }
107
108 if (adev->powerplay.ip_funcs->early_init)
109 ret = adev->powerplay.ip_funcs->early_init(
110 adev->powerplay.pp_handle);
111
112 if (ret == PP_DPM_DISABLED) {
113 adev->pm.dpm_enabled = false;
114 return 0;
115 }
116 return ret;
117}
118
119
120static int amdgpu_pp_late_init(void *handle)
121{
122 int ret = 0;
123 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
124
125 if (adev->powerplay.ip_funcs->late_init)
126 ret = adev->powerplay.ip_funcs->late_init(
127 adev->powerplay.pp_handle);
128
129 if (adev->pp_enabled && adev->pm.dpm_enabled) {
130 amdgpu_pm_sysfs_init(adev);
131 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_COMPLETE_INIT, NULL, NULL);
132 }
133
134 return ret;
135}
136
137static int amdgpu_pp_sw_init(void *handle)
138{
139 int ret = 0;
140 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
141
142 if (adev->powerplay.ip_funcs->sw_init)
143 ret = adev->powerplay.ip_funcs->sw_init(
144 adev->powerplay.pp_handle);
145
146 return ret;
147}
148
149static int amdgpu_pp_sw_fini(void *handle)
150{
151 int ret = 0;
152 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
153
154 if (adev->powerplay.ip_funcs->sw_fini)
155 ret = adev->powerplay.ip_funcs->sw_fini(
156 adev->powerplay.pp_handle);
157 if (ret)
158 return ret;
159
160 return ret;
161}
162
163static int amdgpu_pp_hw_init(void *handle)
164{
165 int ret = 0;
166 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
167
168 if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
169 amdgpu_ucode_init_bo(adev);
170
171 if (adev->powerplay.ip_funcs->hw_init)
172 ret = adev->powerplay.ip_funcs->hw_init(
173 adev->powerplay.pp_handle);
174
175 if (ret == PP_DPM_DISABLED) {
176 adev->pm.dpm_enabled = false;
177 return 0;
178 }
179
180 if ((amdgpu_dpm != 0) && !amdgpu_sriov_vf(adev))
181 adev->pm.dpm_enabled = true;
182
183 return ret;
184}
185
186static int amdgpu_pp_hw_fini(void *handle)
187{
188 int ret = 0;
189 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
190
191 if (adev->pp_enabled && adev->pm.dpm_enabled)
192 amdgpu_pm_sysfs_fini(adev);
193
194 if (adev->powerplay.ip_funcs->hw_fini)
195 ret = adev->powerplay.ip_funcs->hw_fini(
196 adev->powerplay.pp_handle);
197
198 if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
199 amdgpu_ucode_fini_bo(adev);
200
201 return ret;
202}
203
204static void amdgpu_pp_late_fini(void *handle)
205{
206 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
207
208 if (adev->powerplay.ip_funcs->late_fini)
209 adev->powerplay.ip_funcs->late_fini(
210 adev->powerplay.pp_handle);
211
212
213 if (adev->pp_enabled)
214 amd_powerplay_destroy(adev->powerplay.pp_handle);
215}
216
217static int amdgpu_pp_suspend(void *handle)
218{
219 int ret = 0;
220 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
221
222 if (adev->powerplay.ip_funcs->suspend)
223 ret = adev->powerplay.ip_funcs->suspend(
224 adev->powerplay.pp_handle);
225 return ret;
226}
227
228static int amdgpu_pp_resume(void *handle)
229{
230 int ret = 0;
231 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
232
233 if (adev->powerplay.ip_funcs->resume)
234 ret = adev->powerplay.ip_funcs->resume(
235 adev->powerplay.pp_handle);
236 return ret;
237}
238
239static int amdgpu_pp_set_clockgating_state(void *handle,
240 enum amd_clockgating_state state)
241{
242 int ret = 0;
243 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
244
245 if (adev->powerplay.ip_funcs->set_clockgating_state)
246 ret = adev->powerplay.ip_funcs->set_clockgating_state(
247 adev->powerplay.pp_handle, state);
248 return ret;
249}
250
251static int amdgpu_pp_set_powergating_state(void *handle,
252 enum amd_powergating_state state)
253{
254 int ret = 0;
255 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
256
257 if (adev->powerplay.ip_funcs->set_powergating_state)
258 ret = adev->powerplay.ip_funcs->set_powergating_state(
259 adev->powerplay.pp_handle, state);
260 return ret;
261}
262
263
264static bool amdgpu_pp_is_idle(void *handle)
265{
266 bool ret = true;
267 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
268
269 if (adev->powerplay.ip_funcs->is_idle)
270 ret = adev->powerplay.ip_funcs->is_idle(
271 adev->powerplay.pp_handle);
272 return ret;
273}
274
275static int amdgpu_pp_wait_for_idle(void *handle)
276{
277 int ret = 0;
278 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
279
280 if (adev->powerplay.ip_funcs->wait_for_idle)
281 ret = adev->powerplay.ip_funcs->wait_for_idle(
282 adev->powerplay.pp_handle);
283 return ret;
284}
285
286static int amdgpu_pp_soft_reset(void *handle)
287{
288 int ret = 0;
289 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
290
291 if (adev->powerplay.ip_funcs->soft_reset)
292 ret = adev->powerplay.ip_funcs->soft_reset(
293 adev->powerplay.pp_handle);
294 return ret;
295}
296
297static const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
298 .name = "amdgpu_powerplay",
299 .early_init = amdgpu_pp_early_init,
300 .late_init = amdgpu_pp_late_init,
301 .sw_init = amdgpu_pp_sw_init,
302 .sw_fini = amdgpu_pp_sw_fini,
303 .hw_init = amdgpu_pp_hw_init,
304 .hw_fini = amdgpu_pp_hw_fini,
305 .late_fini = amdgpu_pp_late_fini,
306 .suspend = amdgpu_pp_suspend,
307 .resume = amdgpu_pp_resume,
308 .is_idle = amdgpu_pp_is_idle,
309 .wait_for_idle = amdgpu_pp_wait_for_idle,
310 .soft_reset = amdgpu_pp_soft_reset,
311 .set_clockgating_state = amdgpu_pp_set_clockgating_state,
312 .set_powergating_state = amdgpu_pp_set_powergating_state,
313};
314
315const struct amdgpu_ip_block_version amdgpu_pp_ip_block =
316{
317 .type = AMD_IP_BLOCK_TYPE_SMC,
318 .major = 1,
319 .minor = 0,
320 .rev = 0,
321 .funcs = &amdgpu_pp_ip_funcs,
322};